System Defaults
The ProComm unit has been set up with default values for all the editable functions as follows:
Language
=
English
Flow
Alerts
=
Disabled
Pressure = kPa
Back Light Timer = 5 minutes
Flow = l/s
Auto-off Timer = 5 minutes
Specific Gravity = 1.00
Update Time = 1 second
Design Flow = 0 l/s
Sample Time = 3 seconds
Target Flow = 0%
View Size As = mm
Details of how to change these settings are provided in the various sections of this manual.
Automatic Alerts
Some automatic alerts may, on occasion, be displayed on the message bar at the top of the screen as
follows:
Zero DP
SG (when specific gravity is not set to 1.0)
Low Battery
High Temp (when internal temp. is high)
Change Battery
Connection
Note: each connection tube is fitted with an isolating valve and it is a matter of personal preference
whether the tubes are used with the isolating valves adjacent to the ProComm unit or adjacent to the
subject measuring valve.
1.
Before starting, ensure that:
a.
Neither tube is connected to the
ProComm unit
, and
b.
Both isolating valves on the connection tubes are in the
CLOSED
position.
2.
Select the correct connection adaptors for the device being measured and attach them to the
connection tubes.
3.
Attach the connection adaptor on the red connection tube to the high-pressure test point on the
subject measuring valve.
4.
Attach the connection adaptor on the blue connection tube to the low-pressure test point on the
subject measuring valve.
5.
Ensure that the equalising valve on the ProComm unit is
OPEN
(turn anti-clockwise) and then attach
the ProComm to the free ends of the red and blue connection tubes.
6.
Open the isolating valves on the connection tubes. The differential pressure across the subject
measuring valve will generate flow through the connection tubes – from the high-pressure side to the
low-pressure side – and expel any air from inside the tubes.
7.
Close the isolating valves on the connection tubes.
8.
Press the
ZERO
button to set the datum at zero (if the unit is being subjected to an extreme
temperature change at this point, the datum may drift from zero as the internal temperature of the
unit changes and, in these circumstances, it will be necessary to repeat this process until the internal
temperature stabilises and a zero datum is maintained).
9.
Open the isolating valves on the connection tubes.
10.
Close the equalising valve.
11.
The ProComm unit will now be reading differential pressure.
Please remember that the default setting for the Auto-Off Timer is 5 minutes i.e. the ProComm will
automatically switch off after 5 minutes of inactivity. If this happens, simply press the
MENU
button to
switch the unit on again.
IMPORTANT SAFETY NOTE:
For safe removal of the ProComm unit, ensure that the equalising valve is
OPEN before
CLOSING the isolating valves on the connection tubes. The ProComm unit and the connection
tubes can now be safely removed from the subject measuring valve.
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